Fujitsu ETERNUS DX60 S3 User Manual page 201

Chapter 4 Volume Status
4.2 Performance (Host I/O)
• Usage
The usage of the volume is displayed.
- Block
The volumes that are used for the SAN.
- Block/Dedup
The Deduplication/Compression Volumes.
- File
The volumes that are used for the NAS.
- System
The volumes that are used for management information.
Refer to
• Read IOPS
The read count per second is displayed.
• Write IOPS
The write count per second is displayed.
• Read Throughput
The amount of transferred data that is read per second is displayed.
• Write Throughput
The amount of transferred data that is written per second is displayed.
• Read Response Time
The average read response time per host I/O is displayed.
• Write Response Time
The average write response time per host I/O is displayed.
• Read Processing Time
The average read processing time per host I/O is displayed.
This item is displayed only when the controller firmware version V10L4x or later is used.
• Write Processing Time
The average write processing time per host I/O is displayed.
This item is displayed only when the controller firmware version V10L4x or later is used.
• Read Cache Hit Rate
The cache hit rate (for read) is displayed.
• Write Cache Hit Rate
The cache hit rate (for write) is displayed.
• Prefetch Cache Hit Rate
The cache hit rate (for prefetch) is displayed.
• Extreme Cache Cache Hit Rate
The cache hit rate of EXC for read I/O is displayed.
This item is displayed when EXC or EXCP is enabled for the ETERNUS DX. A "-" (hyphen) is displayed for
volumes where EXC and EXCP are disabled. Enabling or disabling EXC for the volume can be performed
with ETERNUS CLI or ETERNUS SF Storage Cruiser. Enabling or disabling EXCP for the volume can be
performed with ETERNUS Web GUI. Refer to "Modify Cache Parameters" in "ETERNUS Web GUI User's Guide
(Settings)" for details.
The mode (Extreme Cache or Extreme Cache Pool) that is being used for the ETERNUS DX is displayed in
the [System Settings] screen. Refer to
"Usage Details" (page 228)
"2.12 System Settings" (page 71)
ETERNUS Web GUI User's Guide (Operation)
Copyright 2016 FUJITSU LIMITED
in "4.11 Volume Detail (Basic)"
201
for details.
for details.
P2X0-1260-19ENZ0